Home / 5,178.61-7,765.14-2,058.49

Finding the Fourth Proportional to 5,178.61, 7,765.14 and 2,058.49

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Solution

The fourth proportional to 5,178.61, 7,765.14 and 2,058.49 is: 3,086.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,178.61 : 7,765.14 = 2,058.49 : x
  2. Step 2: Convert to fraction form
    5,178.61/7,765.14 = 2,058.49/x
  3. Step 3: Cross multiply
    5,178.61x = 7,765.14 × 2,058.49
  4. Step 4: Simplify right side
    5,178.61x = 15,984,463.04
  5. Step 5: Solve for x
    x = 15,984,463.04/5,178.61
  6. Step 6: Final answer
    x = 3,086.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.